Small block Chevy intake single plane spread bore carburetor base. Note that carb stud mounts can be for Holley or quadrajet - Street master -good for hood clearance. model 3225 all mount holes intact. One of the Thermostat housing holes has top4 threads pulled. I used it with no issues no leaks for years with a longer bolt. First one to show up with $50- takes it -yes its available if ad is up.
